Sheridan Harbridge has long been inspired by rebellious women. When we meet, the actor, writer and director has just finished a Melbourne run of Amplified , a cabaret based on the life of Oz-rock goddess Chrissy Amphlett. Inhabiting the bad-girl persona of The Divinyls frontwoman, she says, has been one of the highlights of her career. “During the show, I try to steal a purse from someone,” Harbridge says with a mischievous grin. “I ask them for it, as Chrissy, and I’m always amazed when they give it to me. I’d never give my purse in that situation. The performer would need a tetanus shot! What’s in my handbag is horrific. Right now, there are boiled eggs in there.” Having purloined the purse, Harbridge’s Chrissy crosses the stage, opens it, and dumps the contents onstage. She goes through their wallet, wears their perfume, sometimes takes the money.…